The partitive: du, de la, des
CEFR A1 · part 2
edumaterial's parts within the level. The European framework does not subdivide them.
à and de with the article: au, aux, du, desContracting à + le into au, à + les into aux, de + le into du and de + les into des…Adjectives: before or after the nounPlacing the adjective correctly and making it agree, including irregular feminine forms.Passé composé: avoir or être?Choosing the auxiliary, forming the participle and agreeing when required.Son, sa, ses: they agree with the thingChoosing the possessive by the gender and number of the thing owned, not the owner; and…C'est or il estUsing c'est to introduce or identify —with an article after— and il/elle est to describe…The three ways of asking a questionAsking the same question three ways and knowing which each situation calls for…The rule, in three lines
Before uncountable things French requires an article: du, de la, de l', des. And after a negative all four reduce to de.
The usual slip. Leaving it out, because English can say «I eat bread» with nothing in front.
Why it catches you out. English can drop «some» — «I eat bread» — so you drop the article too. And when you do use one, you pick it by translating «some» instead of by the noun's gender.